Spring wire connecter



March l, 19,32.` R. M. BROWVNING 1,847,378

SPRING WIRE CONNECTER Filed March 27, 1929 l C l NMmmm d 5mm/nto@ Patented Mar. 1, 1932 UNITED STATES ROGER M. BROWNING, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO EDWARD .(3. BOWERS AND CHARLES L. FELDMAN, RECEIVERS FOR 'WICKWIRE SPENCER STEEL` PATENT OFFICEv COMPANY, 0F NEW YORK, N. Y., A CORPORATION MASSACHUSETTS SPRING' WIRE CONNECTER Application led March v27, 1929. Serial No. 350,276.

The present invention relates to connectors for spring wires and embodies, more specifically, an improved spring wire connecter which may be applied to a standard spring of desired diameter without requiring a special construction thereof, particularly in the form of reduced diameters of the coils at one end of the spring in order to it into the connecter or other end thereof.

In connecting the ends of a coil spring, it has heretofore been necessary to provide either a special construction of one spring end or a connecter which destroys the uniform diameter of the connected spring, orv

characteristics which are desirable in such spring. For example, where one end is designed to it into the other, the diameter of the coils of one end are reduced in order thatthey may be inserted into the other end. The'diiiiculty in manufacturing a spring of this character is considerable, since the winding of the spring in different diameters is an eX- pensive operation and requires the use o f specially designed equipment. Other spring connecters now available are of such character that the uniform exibility of the spring is destroyed and a connecter which does not present these disadvantages is highly desirable.

Accordingly, it is an object of thisr invention to provide a spring wire connecter of such character that the uniform flexibility of the spring is preserved. Y

A further obj ect of the invention is to provide a connecter of the above character which is easily manufactured and capable of being applied to a standard form of spring without special instruments and without requiring reconstruction of the spring. It is proposed to include in a spring wire connecter of the above form, a construction which is strong and easily manufactured, at the same time being easily inserted in the ends of the spring to facilitate the connection ofthe ends thereof.

Further objects ofthe invention, not specilically enumerated above, will be apparent as it is described in greater detail in connection with the accompanying drawings, wherein:

Figure l is a view, partly broken away and in section, through the connected ends of a spring wire.

Figure 2 is a plan view of a spring wire connecter constructed in accordance with the present invention.

Referring to the above drawings, a spring wire is shown in Figure 1 having ends a and Z). These ends are of uniform diameter and are adapted to be juxtaposed to receive a.

spring wire connecter c formed of a coiled spring having its greatest diameter at d and tapering extremities d. These extremities are of less diameter than the diameter at d and permit the ends of the connecter to be inserted within the ends a and b of the spring wire.

By threading theends of the connecter within the ends of the spring wire the convolutions of the former engage directly with 'the convolutionsof the spring wire to form a spring wire and that such ends need not beV specially formed. The connecter is easily manufactured in suitable sizes to engage the yends of standard forms of spring wires and although it has been shown as formed of reversely tapered portions of the type shown in the accompanying drawings, it is not to be limited, save as defined :in the appended claims.

I claim as my invention:

l. A device of the character described comprising a connecter formed of a spring coil having its greatest diameter intermediate the ends thereof, and having convolutions tapering in diameter adjacent the ends thereof to engage a plurality of convolutions of a springf- 2. Afdevioe fof-the character describ'edom-" prising a connecter formed of convolutionsN and havingits greatest diameter at its mid-,44 section the convolutions tapering..o"uni'' formly towardthe endsof "the connecter-Lto. engage a plurality of "convolutions of V'a spring.

This specification signed this 16 day of' March, A. D. 1929.

ROGER-M. BROWNING.-.

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